like the Threadtitle says the UWP Build Suceeded, but if i want to Play i get an Fatal Error. Failed to load Game Assembly. I tried on Windows 10 1809 and compiled the Game with VS 2017. Compiling works fine.

In the UnityPlayer.log i got this Error:

il2cpp: function il2cpp_unity_install_unitytls_interface not found
Failed to load Game Assembly!

Unity Technologies

Thank you very much!
That points me in the right direction. I builded the vs project on a machine with unity 2017 installed. Then i copied the project and wanted to build the uwp package on another machine, where unity 2018 was installed. That was the fault.

The solution was to downgrade to unity 2017 again, then everything works as expected.

Oops...

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